Monitoring of groundwater wells can give us a reliable method to the long-term analysis of the groundwater levels. With this method we have been able to follow the effects of different interventions to the groundwater recharge. During our experiments the groundwater level changes at 18 sample sites was investigated. The area was characterized by decrease of the groundwater level in the last decades caused by anthropogenic influences such as water management or drainage and by uneven precipitation distribution. We intended to increase the groundwater level by water wales disposed perpendicular to the direction of the flow of the periodic watercourses that encircle the area and by heightening the dams of reservoirs, furthermore by building new reservoirs. In the frame of KASZÓ-LIFE project, according to our results the implemented water retention works did slow down the speed by half of the decrease of the groundwater levels; meanwhile the precipitation have been still not enough to stop the decreasing tendency of groundwater levels.

For non-commercial purposes, let others distribute and copy the article, and include in a collective work, as long as they cite the author(s) and the journal, and provided they do not alter or modify the article.